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diff --git a/chrome/browser/rlz/chrome_rlz_tracker_delegate.h b/chrome/browser/rlz/chrome_rlz_tracker_delegate.h
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+++ b/chrome/browser/rlz/chrome_rlz_tracker_delegate.h
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+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CHROME_BROWSER_RLZ_CHROME_RLZ_TRACKER_DELEGATE_H_
+#define CHROME_BROWSER_RLZ_CHROME_RLZ_TRACKER_DELEGATE_H_
+
+#include "base/callback_list.h"
+#include "base/macros.h"
+#include "components/rlz/rlz_tracker_delegate.h"
+#include "content/public/browser/notification_observer.h"
+#include "content/public/browser/notification_registrar.h"
+
+class Profile;
+
+// ChromeRLZTrackerDelegate implements RLZTrackerDelegate abstract interface
+// and provides access to Chrome features.
+class ChromeRLZTrackerDelegate : public rlz::RLZTrackerDelegate,
+                                 public content::NotificationObserver {
+ public:
+  ChromeRLZTrackerDelegate();
+  ~ChromeRLZTrackerDelegate() override;
+
+  static bool IsGoogleDefaultSearch(Profile* profile);
+  static bool IsGoogleHomepage(Profile* profile);
+  static bool IsGoogleInStartpages(Profile* profile);
+
+ private:
+  // RLZTrackerDelegate implementation.
+  void Cleanup() override;
+  bool IsOnUIThread() override;
+  base::SequencedWorkerPool* GetBlockingPool() override;
+  net::URLRequestContextGetter* GetRequestContext() override;
+  bool GetBrand(std::string* brand) override;
+  bool IsBrandOrganic(const std::string& brand) override;
+  bool GetReactivationBrand(std::string* brand) override;
+  bool ShouldEnableZeroDelayForTesting() override;
+  bool GetLanguage(base::string16* language) override;
+  bool GetReferral(base::string16* referral) override;
+  bool ClearReferral() override;
+  void SetOmniboxSearchCallback(const base::Closure& callback) override;
+  void SetHomepageSearchCallback(const base::Closure& callback) override;
+
+  // content::NotificationObserver implementation:
+  void Observe(int type,
+               const content::NotificationSource& source,
+               const content::NotificationDetails& details) override;
+
+  content::NotificationRegistrar registrar_;
+  base::Closure on_omnibox_search_callback_;
+  base::Closure on_homepage_search_callback_;
+
+  DISALLOW_COPY_AND_ASSIGN(ChromeRLZTrackerDelegate);
+};
+
+#endif  // CHROME_BROWSER_RLZ_CHROME_RLZ_TRACKER_DELEGATE_H_